<!DOCTYPE HTML>
<html>
<head>
<style>
#d { width:200px; border:10px solid rgba(200,200,200,0.99); }
#e { width:196px; height:196px; opacity:0.99; background-color:rgb(200,200,200); padding:2px; }
#f { width:200px; height:10px; opacity:0.8; }
</style>
</head>
<body>
<div id="d">
  <div id="e">
    <div style="width:80px; height:80px; background:yellow;"></div>
    <div id="f">
      <div style="width:80px; height:80px; background:blue;"></div>
    </div>
  </div>
</div>
</body>
</html>
